package com.godfrey.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * description : ShiroConfig
 *
 * @author godfrey
 * @since 2020-06-02
 */
@Configuration
public class ShiroConfig {

    //ShiroFilterFactoryBean  第三步
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();

        //设置安全关联器
        bean.setSecurityManager(defaultWebSecurityManager);

        /**
         * 添加shiro的内置过滤器：
         *     anon: 无需认证就可访问
         *     authc：必须认证才能访问
         *     user：必须拥有记住我功能才能访问
         *     perms: 拥有对某个资源的权限才能访问
         *     role:拥有某个角色权限才能访问
         */
        Map<String, String> filterMap = new LinkedHashMap<>();

        //授权
        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:update]");

        filterMap.put("/user/*", "authc");
        //设置登出
        filterMap.put("/logout", "logout");
        bean.setFilterChainDefinitionMap(filterMap);

        //设置登录请求
        bean.setLoginUrl("/toLogin");

        //设置未授权页面
        bean.setUnauthorizedUrl("/noauth");

        return bean;
    }

    //DefaultWebSecurityManager  第二步
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();

        //关联Realm
        securityManager.setRealm(userRealm);

        return securityManager;
    }

    //创建realm对象 ，需要自定义  第一步
    @Bean
    public UserRealm userRealm() {
        return new UserRealm();
    }

    //ShiroDialect  整合 shiro thymeleaf
    @Bean
    public ShiroDialect getShiroDialect() {
        return new ShiroDialect();
    }
}
